p2453 cant get rid of code - Chevy and GMC Duramax Diesel Forum
07.5-10 LMM Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 2 (permalink) Old 08-10-2011, 07:00 PM Thread Starter
DuramaxForum n00b
Join Date: Apr 2011
Posts: 16
p2453 cant get rid of code

have evo cs race with DPFdelite . ran truck on level 7 and truck threw this code put back to level 2 and can clear code with tuner but as soon as i accelerate 1/4 throttle code comes back, WTH

late model 07 2500hd-all stock motor, muffler and DPF delete, 6" lift, airbags,4 air horns ,on board compressor. 325/65/20 nitto a/t's,american racing wheels, evo cs race tuner,cobra hand held cb,tinted windows, amp electric running boards
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post #2 of 2 (permalink) Old 08-11-2011, 05:39 AM
DuramaxForum Enthusiast
Join Date: Mar 2011
Location: Northern MN
Posts: 2,944
Sure you dont mean 2543? which is a low fuel pressure code. I think you might need to shim your FPR valve, watch your FRP and DFRP with your edge. put the two gauges side by side and see if a difference shows up between them as you accelerate.

And for a stock truck, level 7 will kill your tranny and cause a lot more smoke than necessary and might kill your turbo if your not watching your EGT's. Lvl 3-4 is about all I would run with a stock tranny if your not too hard on it.

2008 2500HD LTZ, EFI Live- Idaho Rob's Tunes, 4" Magnaflow Turbo Back, Raptor 150 Lift Pump, Transgo Jr, All Season Diesel EGR delete with high flow Y-bridge, Edge Insight for gauges,
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